<?php
if (!defined('BASEPATH'))
    exit('No direct script access allowed');

/**
 * Controller for managing files.
 * @package cms-fileuploader/conrollers
 * @category Controller
 * 
 * @author Mark Angelo Angulo
 * @copyright (c) 2013, makeapps.at
 */
class Fileuploader extends CMS_Controller {
    
    /**
     *  Constructor method.
     */
    function __construct() {
        parent::__construct();

        $this->load->helper('cms');
        $this->load->helper('fileuploader');
    }

    /**
     * Default method called when nothing is specified.
     * Displays all existing blog items.
     * @access public
     */
    public function index()
    {
//        $this->load->library('migration');
//        if ( ! $this->migration->current())
//        {
//            show_error($this->migration->error_string());
//        }
        
//        echo 'bazinga!';
        view_list();
    }
    
    public function upload()
    {
        header("Expires: Mon, 26 Jul 1997 05:00:00 GMT");
        header("Last-Modified: " . gmdate("D, d M Y H:i:s") . " GMT");
        header("Cache-Control: no-store, no-cache, must-revalidate");
        header("Cache-Control: post-check=0, pre-check=0", false);
        header("Pragma: no-cache");
        
        @set_time_limit(0);
        
        // Settings
        $targetDir = FCPATH . 'uploads/tmp/';
        // Remove old files
        $cleanupTargetDir = true;
        // Temp file age in seconds
        $maxFileAge = 5 * 3600;
        
        // Create target dir
        if (!file_exists($targetDir))
        {
            @mkdir($targetDir);
        }

        // Get a file name
        if (isset($_REQUEST["name"]))
        {
            $fileName = $_REQUEST["name"];
        } elseif (!empty($_FILES))
        {
            $fileName = $_FILES["file"]["name"];
        } else
        {
            $fileName = uniqid("file_");
        }

        $filePath = $targetDir . DIRECTORY_SEPARATOR . $fileName;

        // Chunking might be enabled
        $chunk = isset($_REQUEST["chunk"]) ? intval($_REQUEST["chunk"]) : 0;
        $chunks = isset($_REQUEST["chunks"]) ? intval($_REQUEST["chunks"]) : 0;


        // Remove old temp files	
        if ($cleanupTargetDir)
        {
            if (!is_dir($targetDir) || !$dir = opendir($targetDir))
            {
                die('{"jsonrpc" : "2.0", "error" : {"code": 100, "message": "Failed to open temp directory."}, "id" : "id"}');
            }

            while (($file = readdir($dir)) !== false)
            {
                $tmpfilePath = $targetDir . DIRECTORY_SEPARATOR . $file;

                // If temp file is current file proceed to the next
                if ($tmpfilePath == "{$filePath}.part")
                {
                    continue;
                }

                // Remove temp file if it is older than the max age and is not the current file
                if (preg_match('/\.part$/', $file) && (filemtime($tmpfilePath) < time() - $maxFileAge))
                {
                    @unlink($tmpfilePath);
                }
            }
            closedir($dir);
        }


        // Open temp file
        if (!$out = @fopen("{$filePath}.part", $chunks ? "ab" : "wb"))
        {
            die('{"jsonrpc" : "2.0", "error" : {"code": 102, "message": "Failed to open output stream."}, "id" : "id"}');
        }

        if (!empty($_FILES))
        {
            if ($_FILES["file"]["error"] || !is_uploaded_file($_FILES["file"]["tmp_name"]))
            {
                die('{"jsonrpc" : "2.0", "error" : {"code": 103, "message": "Failed to move uploaded file."}, "id" : "id"}');
            }

            // Read binary input stream and append it to temp file
            if (!$in = @fopen($_FILES["file"]["tmp_name"], "rb"))
            {
                die('{"jsonrpc" : "2.0", "error" : {"code": 101, "message": "Failed to open input stream."}, "id" : "id"}');
            }
        } else
        {
            if (!$in = @fopen("php://input", "rb"))
            {
                die('{"jsonrpc" : "2.0", "error" : {"code": 101, "message": "Failed to open input stream."}, "id" : "id"}');
            }
        }

        while ($buff = fread($in, 4096))
        {
            fwrite($out, $buff);
        }

        @fclose($out);
        @fclose($in);

        // Check if file has been uploaded
        if (!$chunks || $chunk == $chunks - 1)
        {
            // Strip the temp .part suffix off 
            rename("{$filePath}.part", $filePath);
        }

        // Return Success JSON-RPC response
        die('{"jsonrpc" : "2.0", "result" : null, "id" : "id"}');
    }

}

/* End of file fileuploader.php */
/* Location: ./application/modules/cms-fileuploader/controllers/fileuploader.php */